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Red Thread

Red Thread

  • Common Name Red Thread
  • Scientific Name Laetisaria fuciformis
  • Areas affected Turf grasses
  • Main Causes Fungus
  • Timing All year round, but more common in autumn

What is Red Thread?

Red thread is a common cause of patches of dead grass on lawns. It is type of fungus called Laetisaria fuciformis and can occur at any time of the year if the conditions are correct. The fungus is most serious on red fescue but other grasses (such as perennial ryegrass and annual meadow grass) are also susceptible.

Symptoms & Occurrence:

Red Thread can occur all year round, however the disease is most prominent during wet and humid conditions, therefore it is most common in late summer and autumn.

Control:

Improve the drainage and aeration of your turf by using a scarifier. This will also remove thatch, moss and leaves from the grass. Also, ensure that your soil is not deficient in macronutrients such as nitrogen.

Control

We recommend using a specialist pesticide such as Inter Tebloxy (a contact and systemic turf fungicide) or Pan Aquarius (a broad spectrum turf fungicide) to control Red Thread. Instrata Elite can also be used now for Red Thread. 

For more information on controlling Red Thread, please get in touch with our sales team on 01522 246491.